Doorlock



Dec- 3, 1935- K. s. GEISELHART 2,022,853

DooRLQcK Filed OG.. 29, 1954 ATraR/VE/ Patented Dec. 3, 1935 UNITEDSTATES PATENT OFFICE 1 Claim.

The present invention relates particularly to locking means for slidingdoors such as double doors for garages and other buildings, cabinets,show-cases, etc.

It is one object of the present invention to provide a locking means ofthe character indicated whereby a latch and locking means are disposedand arranged to cooperate with a handle on one of a pair of doors toeffect the fastening of 1l)Y the two together.

Y It is another object to provide a means of the character indicatedwherein the latch and locking parts are moved into and out of theirlocking positions simultaneously and entirely by manipulation of thehandle.

It is a further object of the invention to provide a device of thecharacter indicated that will be economical to manufacture, simple inform and construction, that consists of few parts, that will be easy andpositive in operation, and that will be strong, durable, and highlyeicient in its practical application.

The drawing is a perspective view of a device embodying my invention andoperatively mounted upon a pair of doors, partly in section and withparts broken away.

Referring now more particularly to the drawing, I and 2 indicate twosliding doors that have moved into a closed position so as to overlap attheir meeting edges as at 3, portions of the top guideways beingindicated at 4.

Considering door 2 as the rear door, a keeper plate is mounted on theforward surface thereof as at 5, and this plate is provided with anopening 5 including a radially disposed notch 1, the door itself beinghollowed out back of the plate to form a pocket at 3. Y

The door I is bored through as at 9 in axial alignment with the opening5 when the doors are closed, the innerside of the door I being providedwith a recess at I!! fitted with a plate l I which in turn is providedwith a bearing I2 for a bolt I3.

The outer face of door I is tted with a fixed plate I4 provided with abearing I5 for the en- 45 larged end I5 of the bolt I3.

The bolt I3 has a head I'l mounted on its inner end, which head isadapted to pass through the opening 6 and provided with a finger I8movable through the notch 'l and engageable with the back of plate 5. Aspring I9 is inserted between plate II and shoulder 26 on end I6 to urgehead Il into the recess Il).

On the lower end of plate I4 is formed a boss '2l having its inner edge22 approaching the center of the plate and disposed at right anglesthereto, and its top edge 23 angularly disposed relative thereto asshown. An upstanding eye is mounted. on boss 2l as at 24 with its innerside ilush with the edge 22.

60 At 25 is shown a plate having substantially the same dimensions asthe plate I4 and overlying the same, but with a recess formed in itslower portion as at 2E complementary to the boss 2I. This end of plate25 has an upstanding eye as 2l mounted thereon with its inner surfaceflush with the inner edge 28 of recess 26 and adapted to align with theeye 2| when the device is in a locking position.

The plate 25 is mounted on end I6 of bolt I3 as shown at 29 and forms anintegral part of the bolt to turn as a unit therewith. The point atwhich the plate 25 is mounted on the bolt I3 is so disposed that anextension of the axis of the bolt would pass through substantially thecenter of the handle 3i) which is mounted on the plate 25 and forms apart thereof.

When the parts are in a locking,Av position as shown in the drawing andabove described a padlock as 3l may be passed through eyes 2| and 2?,thereby securing the plate 25 against rotation relative to plate 4 andlocking the two doors securely together.

In unlocking the doors the padlock is, of course, removed, and the plate25 is then rotated to the position indicated by the dotted line 32through the medium of handle 30. When the finger I8 reaches notch I vthespring I9 draws it into the recess I0 and the doors are free to slidepast each other.

In locking the doors they are rst moved into the position indicatedthrough the mediumof handle 3D which, as stated above, lies in theposition indicated by the dotted line 32. When the proper positioning isattained a little pressure on the handle 3B overcomes the resistance ofthe spring I9 and the parts Il, I8 are thrust through opening 6, and thehandle is turned to the final closed and locking position.

It is to be understood, of course, that while I have herein shown anddescribed but one speciflc embodiment of the invention, changes in form,construction, and method of assembly and operation may be made withinthe scope of the appended claim.

I claim:

In a door lock, a plate adapted to be flxedly mounted on the outside ofa door and having an upstanding part provided with an eye disposed onone end thereof, a locking bolt slidably and rotatably mounted in saidplate, a second plate mounted on said bolt as an integrant part thereofto overlie the first plate and having an upstanding part disposedthereon provided with an eye alignable with the eye on the first plate,and a handle disposed on the second plate as an integrant part thereofwhereby the axis of rotation of the handle coincides with the axis ofrotation of the bolt.

KARL S. GEISELHART.

